Non-invasive measurement of blood pressure
First Claim
1. A method for non-invasively measuring the blood pressure of a patient, comprising the steps ofa) measuring the diastolic and the systolic blood pressure value and the pulse rate of the patient;
- b) repeating step a) at least once thereby generating a series of consecutive measurement results of the systolic and diastolic blood pressure and of the pulse rate;
c) automatically analyzing said series of consecutive results for determining the validity of said results by verifying whether a first condition is fulfilled, whereby said first condition is fulfilled if results of the systolic blood pressure are continuously decreasing and if the results of the diastolic blood pressure are continuously decreasing or increasing and if the results of the pulse rate are continuously decreasing.
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Abstract
By a method to measure the blood pressure of a patient, a series of measurements for the diastolic, the systolic blood pressure and for the pulse rate are made. The results are analysed in order to determine, and to display whether the patient is properly settled to a rest condition, and whether the patients blood pressure variation is found as being normal. Further it is investigated, whether there are high measurement result alterations due to artefacts. Highly altered results are excluded. If the results are sufficiently similar, an average of the result is made. If the results are not sufficiently similar, but still below pre-defined alteration limits, a weighted average is applied to the systolic and the diastolic blood pressure.
59 Citations
11 Claims
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1. A method for non-invasively measuring the blood pressure of a patient, comprising the steps of
a) measuring the diastolic and the systolic blood pressure value and the pulse rate of the patient; -
b) repeating step a) at least once thereby generating a series of consecutive measurement results of the systolic and diastolic blood pressure and of the pulse rate;
c) automatically analyzing said series of consecutive results for determining the validity of said results by verifying whether a first condition is fulfilled, whereby said first condition is fulfilled if results of the systolic blood pressure are continuously decreasing and if the results of the diastolic blood pressure are continuously decreasing or increasing and if the results of the pulse rate are continuously decreasing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for non-invasively measuring the blood pressure of a patient, the device comprising
means for non-invasively measuring the systolic and the diastolic blood pressure and pulse rate of a patient; -
means for storing a series of consecutive measurement results of the systolic blood pressure, the diastolic blood pressure and the heart rate;
means for analyzing the series of measurement results of the diastolic, the systolic blood pressure and the pulse rate, wherein the means for analyzing are adapted to determine whether the results of the systolic blood pressure are continuously decreasing and the results of the diastolic blood pressure are continuously increasing or decreasing and the results of the pulse rate are continuously decreasing. - View Dependent Claims (9, 10, 11)
wherein the means for analyzing are further adapted to verify whether the variation index is above a predetermined or predeterminable variation index limit.
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10. A device according to claim 8, wherein the means for analyzing are further adapted to verify whether the differences between consecutive results of the systolic blood pressure and of the diastolic blood pressure are above a predetermined or predeterminable alteration limit or below a predetermined or predeterminable similarity limit.
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11. A device according to claim 8, wherein the device further comprises means for forming an average of measurement results of the systolic blood pressure and the diastolic blood pressure and means for forming a weighted average of the measurement results of the systolic blood pressure and of the diastolic blood pressure.
Specification